XSS in Maalfer Mailerup
CVE-2026-75872
HTML Injection in the public subscription form in maalfer MailerUp before 1.1.3 allows unauthenticated remote attackers to have the application send a message carrying arbitrary HTML, to an attacker-chosen address and from the form owner's configured sending identity, via the first_name field of the subscription request, which is interpolated unescaped into the double opt-in verification email.
Affected products
Weakness classification (CWE)
References
- 4daa8cea-433a-44bd-9456-53b127fc289a (patch)
- 4daa8cea-433a-44bd-9456-53b127fc289a (release-notes)
- 4daa8cea-433a-44bd-9456-53b127fc289a (technical-description)